Mallesham Dasari

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The block matching algorithm (BMA) used for motion estimation (ME) during video coding in H.264 standard takes nearly 90% of total encoding time. The proposed work is based on analyzing the video content to dynamically choose an efficient search pattern. The algorithm based on the variance of motion in the video shows efficient results by reducing the(More)
Time division multiple access (TDMA) based channel access is one of the most widely used mechanisms in Mobile Ad hoc Networks (MANET) with its efficient channel access and collision free transmissions at its core. In this paper, we propose a unique TDMA frame format designed specifically for supporting two-way voice communication in bandwidth efficient(More)
The image processing applications involve huge amount of computational complexity as the operations are carried out on each pixel of the image. The General Purpose computations that are data independent can run on Graphics Processing Units (GPU) to enable speedup in running time due to high level of parallelism. Compute Unified Device Architecture (CUDA)(More)
Mobile web page load time depends on three key factors: (1) the complexity of the Webpage, (2) the underlying network conditions, and (3) the processing capability of the device. While there are several works focusing on the Web complexity and the network, there is a little work in understanding the hardware bottlenecks in the page load process. In this(More)
In this paper, a real time detection of Medium Access Control (MAC) layer attacks in IEEE 802.11 wireless networks is proposed. There can be different kinds of Denial of Service (DoS) attacks observed at the MAC layer such as misbehaviour and selfish attacks. The malicious nodes manipulate the MAC protocol parameters such as back-off time, network(More)
In this paper, we propose a novel, efficient and fast motion estimation (ME) algorithm for High Efficiency Video Coding (HEVC). The proposed work is based on video content that gives us the provision to select a best macro block mode and suitable search pattern for a given slice of the video frame. Each frame is divided into multiple slices based on a(More)
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